Patent US2059893A successfully refreshed from Google Patents.
US2059893A
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Manufacture of articles from steel alloys
Assignee: Krupp Stahl AG
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Filing: 1933-11-22
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Granted: 1936-11-03
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Expires: 1953-11-22
Abstract
No abstract record available.
Inventors
- 👤 Naumann Friedrich Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:49
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/28; C01; C01C; C01C1/00; C01C1/02; C01C1/04; C22C38/12; C22C38/14; C22C38/22; C22C38/24; C22C38/26; C22C38/40; C22C38/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-11-03 | 1940-05-04 | 1940-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-11-03 | 1944-05-04 | 1944-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-11-03 | 1948-05-04 | 1948-11-03 | $7700.00 | Window Closed / Lapsed |